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Subject Author Date
GFI Question Patch 06-29-2008
|--> Re: GFI Question John Grabowski06-29-2008
---> Re: GFI Question David Nebenzahl06-29-2008
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Posted by RBM on June 29, 2008, 2:08 pm

>I have a GFI installed at our lily pool. The pumps are the only things
>running off it. I ran a line out to my tool shed and according to the
>instructions for the GFI, the shed should also be protected by the GFI. The
>other day I went out to the tool shed, the grass was wet with dew and I was
>just wearing house slippers, I suspect my feet were slightly damp. I
>grabbed the power cord of a battery charger to unplug it. Apparently mice
>had chewed the insulation on the cord and I grabbed the bare wire and got
>knocked on my butt. Why didn't the GFI protect me?
>
> ** Posted from http://www.teranews.com **

Two possibilities: The GFCI is defective, or GFCI devices trip when a fault
current is leaked to ground. If the hot and neutral wires were bare, and you
touched only them, and no ground, you'll simply stand there and fry, and the
GFCI won't do a thing for you



Posted by HeyBub on June 29, 2008, 4:19 pm
Patch wrote:
> I have a GFI installed at our lily pool. The pumps are the only things
> running off it. I ran a line out to my tool shed and according to the
> instructions for the GFI, the shed should also be protected by the
> GFI. The other day I went out to the tool shed, the grass was wet
> with dew and I was just wearing house slippers, I suspect my feet
> were slightly damp. I grabbed the power cord of a battery charger to
> unplug it. Apparently mice had chewed the insulation on the cord and
> I grabbed the bare wire and got knocked on my butt. Why didn't the
> GFI protect me?
>

Did the GFI trip?

If so, it did protect you - you got a 4 msec jolt instead of lying there
twitching until someone noticed you hadn't come down for breakfast.



Posted by David Nebenzahl on June 29, 2008, 7:35 pm
On 6/29/2008 9:39 AM Patch spake thus:

> I have a GFI installed at our lily pool. The pumps are the only things
> running off it. I ran a line out to my tool shed and according to the
> instructions for the GFI, the shed should also be protected by the GFI. The
> other day I went out to the tool shed, the grass was wet with dew and I was
> just wearing house slippers, I suspect my feet were slightly damp. I grabbed
> the power cord of a battery charger to unplug it. Apparently mice had chewed
> the insulation on the cord and I grabbed the bare wire and got knocked on my
> butt. Why didn't the GFI protect me?

I can't believe nobody asked the obvious question here: is the outlet
wired correctly? You say you "ran a line out to my tool shed" off the
GFCI outlet, and everyone assumed you did this correctly; did you?

In order to protect things "downstream" of the outlet, those things have
to be connected to the "load" connections of the GFCI device. If you
just wired the shed into the "line" side, nothing on that line will be
protected.


--
"Wikipedia ... it reminds me ... of dogs barking idiotically through
endless nights. It is so bad that a sort of grandeur creeps into it.
It drags itself out of the dark abyss of pish, and crawls insanely up
the topmost pinnacle of posh. It is rumble and bumble. It is flap and
doodle. It is balder and dash."

- With apologies to H. L. Mencken

Posted by Smitty Two on June 29, 2008, 9:22 pm

> On 6/29/2008 9:39 AM Patch spake thus:
>
> > I have a GFI installed at our lily pool. The pumps are the only things
> > running off it. I ran a line out to my tool shed and according to the
> > instructions for the GFI, the shed should also be protected by the GFI. The
> > other day I went out to the tool shed, the grass was wet with dew and I was
> > just wearing house slippers, I suspect my feet were slightly damp. I
> > grabbed
> > the power cord of a battery charger to unplug it. Apparently mice had
> > chewed
> > the insulation on the cord and I grabbed the bare wire and got knocked on
> > my
> > butt. Why didn't the GFI protect me?
>
> I can't believe nobody asked the obvious question here: is the outlet
> wired correctly? You say you "ran a line out to my tool shed" off the
> GFCI outlet, and everyone assumed you did this correctly; did you?
>
> In order to protect things "downstream" of the outlet, those things have
> to be connected to the "load" connections of the GFCI device. If you
> just wired the shed into the "line" side, nothing on that line will be
> protected.

John Grabowski's reply included that question, six hours ago. Perhaps
his post hasn't made it to you yet.

Posted by David Nebenzahl on June 29, 2008, 9:25 pm
On 6/29/2008 6:22 PM Smitty Two spake thus:

>
>> I can't believe nobody asked the obvious question here: is the outlet
>> wired correctly? You say you "ran a line out to my tool shed" off the
>> GFCI outlet, and everyone assumed you did this correctly; did you?
>>
>> In order to protect things "downstream" of the outlet, those things have
>> to be connected to the "load" connections of the GFCI device. If you
>> just wired the shed into the "line" side, nothing on that line will be
>> protected.
>
> John Grabowski's reply included that question, six hours ago. Perhaps
> his post hasn't made it to you yet.

Ah, yes, there it is: my bad. 5 lashes with a wet noodle for me.


--
"Wikipedia ... it reminds me ... of dogs barking idiotically through
endless nights. It is so bad that a sort of grandeur creeps into it.
It drags itself out of the dark abyss of pish, and crawls insanely up
the topmost pinnacle of posh. It is rumble and bumble. It is flap and
doodle. It is balder and dash."

- With apologies to H. L. Mencken

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